Results for “Black Opal”

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3.70 Ct Natural Black Flashing Fire Opal Pear Cab Pair: Weight - 3.70 Ct / Dimensions - 12.20 x 8.10 x 4.50 mm / 2 PC's / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

5 days Left

3.70 Ct Natural Black Flashing Fire Opal Pear Cab Pair

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

Platinum 2.40ct Diamond and Black Opal Ring: This luxury ring is undeniably opulent. Set in Platinum, a dazzling array of Diamonds totaling 2.40 carats make it a breathtaking piece that will never go out of style. This piece’s 5.0 carat Black

Jul 26, 2026

Platinum 2.40ct Diamond and Black Opal Ring

Est.

US$6,000

-

US$7,000

US$1

Eastern European Art Gallery IncBroomall, PA

AAA+ Certified Natural Ethiopian 1 Piece Semicircle Shaped Blue-Black Opal Gemstone, Weight: 17 ct,: AAA+ Certified Natural Ethiopian 1 Piece Semicircle Shaped Blue-Black Opal Gemstone, Weight: 17 ct, Gem80

21 hrs Left

AAA+ Certified Natural Ethiopian 1 Piece Semicircle Shaped Blue-Black Opal Gemstone, Weight: 17 ct,

Est.

US$1,200

-

US$1,800

US$50

ABC Rugs Kilims, Inc.Oxnard, CA

14K Yellow Gold Adjustable Black Opal Pendant Necklace 1.42ct: 14K Yellow Gold Adjustable Black Opal Pendant Necklace 1.42ct This stunning pendant necklace features a natural black opal, elegantly set in solid 14k yellow gold. The opal is an elongated oval caboch

2 days Left

14K Yellow Gold Adjustable Black Opal Pendant Necklace 1.42ct

Est.

US$2,872

-

US$3,476

US$870

Diamond DepotNew York, NY

Platinum Pt900 1.3Ct Black Opal Diamond Ring 9.6G: Platinum Pt900 1.3Ct Black Opal Diamond Ring 9.6G Platinum Pt900 1.3Ct Black Opal Diamond Ring 9.6G features a striking black opal diamond set in a platinum ring, showcasing the unique silver metal an

5 days Left

Platinum Pt900 1.3Ct Black Opal Diamond Ring 9.6G

Est.

US$2,775

-

US$3,350

US$740

SEUYCORaleigh, NC

Natural Fire Red Black Opal Gemstones 1.51 Ct. Oval Cabochon Shape 10.6 x 8 Mm.: Product ID: 818724611 Product Name: Natural Opal Weight: 1.51 CT. Size: 10.6 x 8 x 4 MM. Shape: Oval Cabochon Color: Rainbow Fire Red Black Clarity:Semi - Transparent Luster: Iridescent Gems Origin: E

5 days Left

Natural Fire Red Black Opal Gemstones 1.51 Ct. Oval Cabochon Shape 10.6 x 8 Mm.

Est.

US$86

-

US$136

US$1

Treasure of Gems & JewelryLake Charles, LA

Platinum GIA Certified 2.27ctw Black Opal Diamond Cocktail Ring: Platinum GIA Certified 2.27ctw Black Opal Diamond Cocktail Ring This stunning cocktail ring showcases an exquisite natural black opal, expertly cut in an oval cabochon shape, measuring 8.99 x 7.01 x 3

5 days Left

Platinum GIA Certified 2.27ctw Black Opal Diamond Cocktail Ring

Est.

US$3,913

-

US$5,086

US$1,825

BidhausNew York, NY

Platinum 1.39ct Diamond and Black Opal Ring: A vibrant 5.83 carat black opal emits a rainbow of colors at the center of this captivating ring. This visually stunning piece is further elevated by sparkling diamond accents that together possess a

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Platinum 1.39ct Diamond and Black Opal Ring

US$5,000

Eastern European Art Gallery IncBroomall, PA

Antique Edwardian Gold Platinum GIA Black Opal Diamond Halo Ring: Antique Edwardian Gold Platinum GIA Black Opal Diamond Halo Ring This exquisite Antique Edwardian ring features a stunning natural black opal at its center, showcasing a mesmerizing harlequin pattern

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Antique Edwardian Gold Platinum GIA Black Opal Diamond Halo Ring

US$15,850

Diamond DepotNew York, NY

11.45 Carats AAA Quality Natural Black Opal Ethopia - 22X12X8 mm: 11.45 Carats AAA Quality Natural Black Opal Ethopia - 22X12X8 mm Shipping Rate: $15.00 .shipping rates are determined by Parcel weight and destination.Combined shipping: We offer combine shipping on m

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11.45 Carats AAA Quality Natural Black Opal Ethopia - 22X12X8 mm

US$440

Fantasy JewelryMuscat, AE

Antique 10k Yellow Gold GIA Certified 3.40ct Black Opal Ring: Antique 10k Yellow Gold GIA Certified 3.40ct Black Opal Ring This exquisite antique ring features a stunning 3.40 ct natural Australian black opal, expertly set in a solid 10k yellow gold bezel. The o

3 days Left

Antique 10k Yellow Gold GIA Certified 3.40ct Black Opal Ring

Est.

US$4,823

-

US$6,269

US$3,700

BidhausNew York, NY

2.95ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 90WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 11.3x8.9x5.4mm. The black smoke treatment de

9 hrs Left

2.95ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 90WP

Est.

US$25

-

US$200

US$25

Lazo HeritageSathorn, Bangkok

Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds: Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds Crafted in glowing 14K yellow gold, this elegant vintage brooch features a lustrous opal center that shimmers with iridescent

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Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds

US$9,000

Eastern European Art Gallery IncBroomall, PA

1.56ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 85WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.4x7.9x3.9mm. The black smoke treatment de

9 hrs Left

1.56ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 85WP

Est.

US$10

-

US$200

US$10

Lazo HeritageSathorn, Bangkok

Platinum 1.39ct Diamond and Black Opal Ring: A vibrant 5.83 carat black opal emits a rainbow of colors at the center of this captivating ring. This visually stunning piece is further elevated by sparkling diamond accents that together possess a

Jul 26, 2026

Platinum 1.39ct Diamond and Black Opal Ring

Est.

US$5,000

-

US$6,000

US$1

Eastern European Art Gallery IncBroomall, PA

Natural Fire Red Black Opal Gemstones 1.39 Ct. Oval Cabochon Shape 9.8 x 8 Mm.: Product ID: 818724348 Product Name: Natural Opal Weight: 1.39 CT. Size: 9.8 x 8 x 4.8 MM. Shape: Oval Cabochon Color: Rainbow Fire Red Black Clarity:Semi - Transparent Luster: Iridescent Gems Origin:

6 hrs Left

Natural Fire Red Black Opal Gemstones 1.39 Ct. Oval Cabochon Shape 9.8 x 8 Mm.

Est.

US$134

-

US$211

US$1

Treasure of Gems & JewelryLake Charles, LA

8.35 Carats AAA Quality Natural Black Opal From Ethopia - 16X13X9 mm: 8.35 Carats AAA Quality Natural Black Opal From Ethopia - 16X13X9 mmShipping Rate: $15.00 .shipping rates are determined by Parcel weight and destination.Combined shipping: We offer combine shipping o

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8.35 Carats AAA Quality Natural Black Opal From Ethopia - 16X13X9 mm

US$350

Fantasy JewelryMuscat, AE

1.39ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 95WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.1x7.3x3.9mm. The black smoke treatment de

9 hrs Left

1.39ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 95WP

Est.

US$10

-

US$200

US$10

Lazo HeritageSathorn, Bangkok

2.33ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 86WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.6x7.4x5.5mm. The black smoke treatment de

9 hrs Left

2.33ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 86WP

Est.

US$25

-

US$200

US$25

Lazo HeritageSathorn, Bangkok

6.45 Carats AAA Quality Natural Fire Black Opal - 15X12X7 mm: 6.45 Carats AAA Quality Natural Fire Black Opal - 15X12X7 mmShipping Rate: $15.00 .shipping rates are determined by Parcel weight and destination.Combined shipping: We offer combine shipping on multip

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6.45 Carats AAA Quality Natural Fire Black Opal - 15X12X7 mm

US$250

Fantasy JewelryMuscat, AE

Platinum 0.54ct Diamond and Black Opal Ring: Rare and distinct, this piece features a 4.65-carat black opal carrying blue and green flashes across a dark base. It is set high on a 2mm platinum band and held by four slim claw prongs that leave th

Jul 26, 2026

Platinum 0.54ct Diamond and Black Opal Ring

Est.

US$5,000

-

US$6,000

US$1

Eastern European Art Gallery IncBroomall, PA

Platinum GIA Certified 4.04ctw Black Opal Diamond Ballerina Ring: Platinum GIA Certified 4.04ctw Black Opal Diamond Ballerina Ring This exquisite ballerina cocktail ring features a stunning elongated oval black opal at its center, showcasing a remarkable play of gre

6 days Left

Platinum GIA Certified 4.04ctw Black Opal Diamond Ballerina Ring

Est.

US$6,501

-

US$7,866

US$2,350

Diamond DepotNew York, NY

11.45 Carats AAA Quality Natural Black Opal Ethopia - 22X12X8 mm: 11.45 Carats AAA Quality Natural Black Opal Ethopia - 22X12X8 mm Shipping Rate: $15.00 .shipping rates are determined by Parcel weight and destination.Combined shipping: We offer combine shipping on m

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11.45 Carats AAA Quality Natural Black Opal Ethopia - 22X12X8 mm

US$440

Fantasy JewelryMuscat, AE

GIA Platinum Black Opal Diamond Cocktail Ring Size 7.5: GIA Platinum Black Opal Diamond Cocktail Ring Size 7.5 This platinum cocktail ring features a large natural black opal as its centerpiece, expertly cut in an oval cabochon shape and weighing 5.22 cara

Jul 26, 2026

GIA Platinum Black Opal Diamond Cocktail Ring Size 7.5

Est.

US$8,078

-

US$9,774

US$2,350

Diamond DepotNew York, NY

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